'['Ill-: SHOUT- WINMiKli SCAYKXOKU HKKTLHS. 425 



L. ollioidcs Lee., having the head paral'el at the sides, color deep 

 shining black, legs reddish-brown, antenna* dusky; sixth ventral of 

 male with a square notch; length 5-5.4 mm. It has been taken in 

 New England and Iowa. L. l< line Lee., very slender, with head 

 broadest near the base; color similar; sixth ventral of male semicir- 

 cularly emarginate; length 4.6-5 mm., known from New England, 

 Canada and Michigan, and probably occurs in northern Indiana. 



GROUP D. (TETARTOPEUS.) 



This group is clii"tly distinguished from other snecies of Lath- 

 robium by the very narrow neck. The antenna; are rather slender 

 and filiform and the body is usually more or less fusiform rather 

 than parallel in outline*. The following species have been taken or 

 perhaps occur in the State : 



KEY TO INDIANA SPECIES OK (.MEOl'P D. 



(i. Elytra reddish, sometimes clouded with black <m suture near base. 

 li. Thorax deep black. 



c. Head parallel or only very feebly and gradually narrowed behind 

 the eyes; thorax strongly and coarsely punctate, the punctures 

 rather dense. 818. PUNri vi,.vi TM. 



re. Head very <ibviuusly narrowed behind the eyes in bath sexes. 



RUBRIPENNE. 



l>h. Thorax dull reddish, similar in color to elytra. S14. SEMIRUIJER. 



ad. Elytra not red. 



d. Elytra black with the outer apical angles, or sometimes the whole 

 apex, more or less abruptly pale; length 7-7. s mm. ANGULARE. 



dd. Elytra and entire body black, the legs dark; length 5.3-5.S mm. 



NIGBUM. 



818 (2512). LATHROBIUM ITXCTULATVM Lee., N. Spec. X. Amer. Col.. I, 

 1863, 42. 



Elongate, slender. Black, shining; antenn;e and elytra dull red. the 

 former dusky toward apex; legs dull yellow. Head semicircular behind 

 the eyes, finely and rather sparsely punctate. Thorax oblong, slightly longer 

 than wide, distinctly wider than head; surface, as well as that of elytra, 

 rather coarsely, not closely punctate, the median smooth line very narrow. 

 Elytra one-third wider and distinctly lunger than thorax. Abil -men as 

 wide as elytra, minutely and densely punctate. Males with the third to 

 fifth ventral segments feebly impressed along the middle, the sixth acutely 

 and deeply notched. Length 0-7 mm. 



Throughout the State; scarce. February 26-October 17. Oc- 

 curs beneath cover in open upland woods. 



L. rubriiiciiiK' Casey, (i mm. in length, is said to range from 

 Massachusetts to Iowa. 



